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TDS 420A
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Tektronix TDS 420A - Page 177
288 pages
Manual
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Removal
and
Installa
tion
P
roce
dures
TDS
420A,
TDS
430A
&
TDS
460A
Service
Manua
l
6-
2
5
When
reinstalling
the
knobs,
note
there
are
two
sizes.
Be
sure
to
reinstall
the
proper
size
knob
in
the
proper
location.
Figure
6
-
6:
Knob
and
shaf
t
removal
176
178
Table of Contents
Main Page
Default Chapter
5
Table of Contents
5
Table of Contents
7
General Safety Summary
13
Service Safety Summary
15
Product Description 1
17
Related Manuals
19
Before Servicing
20
Strategy for Servicing
20
Tektronix Service
21
Product Description
23
Nominal Traits 1
23
User Interface
24
Horizontal System
25
Trigger System
26
Acquisition Control
26
Nominal Traits
29
Warranted Characteristics
37
Performance Conditions
37
Installation 2
43
Typical Characteristics
45
Supplying Operating Power
49
Operating Environment
51
Applying and Interrupting Power
52
Repackaging Instructions
53
Installed Options
53
Operating Information
55
Screen Layout
55
Basic Procedures
55
Operating Information
56
Theory of Operation
65
Logic Conventions
65
Module Overview
65
Theory of Operation
66
Performance Verification
69
Performance Verification Procedures
70
Brief Procedures
73
Self Tests
73
Functional Tests
75
Performance Tests 4
76
Performance Tests
83
Test Record 4
83
Equipment Required
84
Test Record
86
Signal Acquisition System Checks 4
88
Sine Wave Generator Leveling Procedure 4
94
Time Base System Checks
102
Trigger System Checks
106
Sine Wave Generator Leveling Procedure
123
Probe Adjustment 5
128
Monitor Assembly Adjustment 5
129
Inspection and Cleaning 6
153
Inspection and Cleaning
156
Removal and Installation Procedures 6
157
Preparation — Please Read 6
161
Access Procedure 6
162
Access Procedure
165
Procedures for Module Removal and Installation 6
166
Options and Accessories
255
Standard Accessories
256
Optional Accessories
257
Replaceable Parts
273
Parts Ordering Information
273
Using the Replaceable Parts List
274
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Programmer's Manual
433 pages
User Manual
232 pages
Reference
6 pages
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